Client: The zip disk you gave me is empty.
Me: I apologize. I'll copy the files onto another one and send it right away.
Day later --
Client: The second zip disk you gave me is blank, too.
Me: That's impossible, I double-checked it and it should have 7 items.
Client: Well, it's blank and there's nothing on it (she then proceeded to lecture me on the important of efficiency).
Me: What does it say at the top of the disk window? Does it say 0 items?
Client: No, it says 7 items. But nothing shows up.
Me: Scroll down.
Client: Oh, there they are!